ExtendedAPIPlugin.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const ConstDependency = require("./dependencies/ConstDependency");
const ParserHelpers = require("./ParserHelpers");
const NullFactory = require("./NullFactory");
const REPLACEMENTS = {
__webpack_hash__: "__webpack_require__.h", // eslint-disable-line camelcase
__webpack_chunkname__: "__webpack_require__.cn" // eslint-disable-line camelcase
};
const REPLACEMENT_TYPES = {
__webpack_hash__: "string", // eslint-disable-line camelcase
__webpack_chunkname__: "string" // eslint-disable-line camelcase
};
class ExtendedAPIPlugin {
apply(compiler) {
compiler.plugin("compilation", (compilation, params) => {
compilation.dependencyFactories.set(ConstDependency, new NullFactory());
compilation.dependencyTemplates.set(ConstDependency, new ConstDependency.Template());
compilation.mainTemplate.plugin("require-extensions", function(source, chunk, hash) {
const buf = [source];
buf.push("");
buf.push("// __webpack_hash__");
buf.push(`${this.requireFn}.h = ${JSON.stringify(hash)};`);
buf.push("");
buf.push("// __webpack_chunkname__");
buf.push(`${this.requireFn}.cn = ${JSON.stringify(chunk.name)};`);
return this.asString(buf);
});
compilation.mainTemplate.plugin("global-hash", () => true);
params.normalModuleFactory.plugin("parser", (parser, parserOptions) => {
Object.keys(REPLACEMENTS).forEach(key => {
parser.plugin(`expression ${key}`, ParserHelpers.toConstantDependency(REPLACEMENTS[key]));
parser.plugin(`evaluate typeof ${key}`, ParserHelpers.evaluateToString(REPLACEMENT_TYPES[key]));
});
});
});
}
}
module.exports = ExtendedAPIPlugin;